City Siege 4: Alien Siege

Just when you thought you’ve had enough of city siege games, here is the third sequel: Alien Siege! Aliens have taken humans hostages, and caused much more chaos than expected! Join the human forces of good and take down those aliens once and for all! With diverse missions and intensive platform gameplay, this is a thrilling game for the most adventurous!

Arm yourself with advanced units and lazer guns and take on the evil plants from this crazy world. After all they have valuable gems we need… Oh, and there are also some humans they abducted for you to save.